Dynamic response of a high-pressure reverse osmosis membrane simulation to time dependent disturbances

Alessio Alexiadis; J. Bao; D. F. Fletcher; D. E. Wiley; D. J. Clements

doi:10.1016/j.desal.2005.07.031

Dynamic response of a high-pressure reverse osmosis membrane simulation to time dependent disturbances

Alessio Alexiadis^*, J. Bao, D. F. Fletcher, D. E. Wiley, D. J. Clements

^*Corresponding author for this work

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Dynamic responses of a high-pressure (80 bar) reverse osmosis (RO) membrane system to pulse disturbances in pressure, concentration and velocity are investigated. Responses are calculated using computational fluid dynamics (CFD) and are used to develop transfer function models using system identification methods. The response of the flux to pressure changes is described by a 3-pole/3-zero model for both positive and negative pressure pulses. The transfer function, which relates the flux response to concentration changes, is a 3-pole model, while the response to flow velocity changes is a single pole model.

Original language	English
Pages (from-to)	397-403
Number of pages	7
Journal	Desalination
Volume	191
Issue number	1-3
DOIs	https://doi.org/10.1016/j.desal.2005.07.031
Publication status	Published - 10 May 2006

Keywords

Computational fluid dynamics
Mathematical modelling
Process dynamics
Reverse osmosis

ASJC Scopus subject areas

Filtration and Separation

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10.1016/j.desal.2005.07.031

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title = "Dynamic response of a high-pressure reverse osmosis membrane simulation to time dependent disturbances",

abstract = "Dynamic responses of a high-pressure (80 bar) reverse osmosis (RO) membrane system to pulse disturbances in pressure, concentration and velocity are investigated. Responses are calculated using computational fluid dynamics (CFD) and are used to develop transfer function models using system identification methods. The response of the flux to pressure changes is described by a 3-pole/3-zero model for both positive and negative pressure pulses. The transfer function, which relates the flux response to concentration changes, is a 3-pole model, while the response to flow velocity changes is a single pole model.",

keywords = "Computational fluid dynamics, Mathematical modelling, Process dynamics, Reverse osmosis",

author = "Alessio Alexiadis and J. Bao and Fletcher, {D. F.} and Wiley, {D. E.} and Clements, {D. J.}",

year = "2006",

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T1 - Dynamic response of a high-pressure reverse osmosis membrane simulation to time dependent disturbances

AU - Alexiadis, Alessio

AU - Bao, J.

AU - Fletcher, D. F.

AU - Wiley, D. E.

AU - Clements, D. J.

PY - 2006/5/10

Y1 - 2006/5/10

N2 - Dynamic responses of a high-pressure (80 bar) reverse osmosis (RO) membrane system to pulse disturbances in pressure, concentration and velocity are investigated. Responses are calculated using computational fluid dynamics (CFD) and are used to develop transfer function models using system identification methods. The response of the flux to pressure changes is described by a 3-pole/3-zero model for both positive and negative pressure pulses. The transfer function, which relates the flux response to concentration changes, is a 3-pole model, while the response to flow velocity changes is a single pole model.

AB - Dynamic responses of a high-pressure (80 bar) reverse osmosis (RO) membrane system to pulse disturbances in pressure, concentration and velocity are investigated. Responses are calculated using computational fluid dynamics (CFD) and are used to develop transfer function models using system identification methods. The response of the flux to pressure changes is described by a 3-pole/3-zero model for both positive and negative pressure pulses. The transfer function, which relates the flux response to concentration changes, is a 3-pole model, while the response to flow velocity changes is a single pole model.

KW - Computational fluid dynamics

KW - Mathematical modelling

KW - Process dynamics

KW - Reverse osmosis

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SP - 397

EP - 403

JO - Desalination

JF - Desalination

IS - 1-3

ER -

Dynamic response of a high-pressure reverse osmosis membrane simulation to time dependent disturbances

Abstract

Keywords

ASJC Scopus subject areas

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